Capstan servo device

Details Capstan servo device Capstan servo device

1991-10-28

1992-09-01

Ip, Paul

Electricity: motive power systems

Positional servo systems

318561, 318138, 318254, 318603, 388812, 360 91, 360 102, H02K 2910, G05B 1908

Patent

active

051442108

ABSTRACT:
A capstan servo device comprising a frequency generator for detecting the rotation rate of a capstan motor and generating two-phase FG signals mutually having a 90.degree. phase difference; a selector for selecting one of input four-phase signals produced from the two-phase FG signals and mutually having a 90.degree. phase difference; and a sync signal generator including an N-bit counter (where N.gtoreq.2) to receive a reference frequency signal inputted thereto and generating a sync signal by phase-comparing the two high-order bits of the frequency-divided output of the counter with the two-phase FG signals. In this device, the rotation speed of the capstan motor is controlled in accordance with an error voltage signal selected by the selector in response to the sync signal.

REFERENCES:
patent: 3492441 (1970-01-01), James
patent: 4443823 (1984-04-01), Sakamoto
patent: 4506202 (1985-03-01), Tajima et al.
patent: 4558382 (1985-12-01), Edakubo et al.
patent: 4613914 (1986-09-01), Kobori et al.
patent: 4630146 (1986-12-01), Takayama et al.
patent: 4862045 (1989-08-01), Gleim et al.

Affiliated with

Also associated with

Rating

Capstan servo device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Capstan servo device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Capstan servo device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-769903